If m<4=105 what is m<5

Which approach to the theory-and-research cycle does the following sequence reflect: (1) specific observations suggest generalizations, (2) generalizations produce a tentative theory, (3) the theory is tested through the formation of hypotheses, and (4) hypotheses may provide suggestions for additional observations?

Using the side-splitter theorem, daniel wrote a proportion for the segment formed by luke segment de. what is ec?

Could someone with number 1 and 2